One of the most common problems for school music ensembles is the lack of rehearsal time to prepare for public performances. Because of this, music educators all too often feel they need to eliminate various parts of the rehearsal so that more time can be spent on rehearsing performance literature. However, this approach can be shortsighted because it does not necessarily help students improve their ensemble performance. One of the many factors that contribute to an effective rehearsal is pacing--the teacher's ability to effectively manage time during the teaching period. In this article, the author shares what he has learned from his experiences as an ensemble conductor about managing rehearsal time, and focuses on content, preparation, verbal interaction, and error correction. (Contains 2 figures, 6 notes, and 8 resources.)